Numbers whose base-8 representation has the same nonzero number of 1's and 2's.

Terms

a(0) =10a(1) =17a(2) =66a(3) =80a(4) =83a(5) =84a(6) =85a(7) =86a(8) =87a(9) =90a(10) =98a(11) =106a(12) =114a(13) =122a(14) =129a(15) =136a(16) =139a(17) =140a(18) =141a(19) =142a(20) =143a(21) =153a(22) =161a(23) =169a(24) =177a(25) =185a(26) =202a(27) =209a(28) =266a(29) =273